The concept of the Parasite Fighter began in 1918, when the British looked into attaching fighter craft to an airship. In theory, they could be guarded by fighters, but not risk running out of fuel, because the fighters aren't flying themselves.

The XF-85 may possible be the smallest jet aircraft in history.

Only two were ever made, and one is on display in Ohio, Wright Patterson Air Force Base, home of the National Museum of The United States Air Force.

By the time it was finished testing, it was obsolete compared to the opposing jet craft it would have battled.